Valve.



G. BROOKE.

VALVE.

I APPLICATION FILED AUG. 24, 1910. 1,016,064. Patented Jan. 30, 1912.

' 2 SHEETS-SHEET 1.

WITNESSES lNVENTOR Z I 715 vac/ K9 G. BROOKE.

VALVE.

APPLICATION FILED AUG. 24, 1910.

INVENTOR d1 WITNE SE5 GERHARD BROOKE, OF ALLEGHENY, PENNSYLVANIA.

VALVE.

Specification of Letters Patent.

Application filed August 24, 1910.

Patented Jan. 30, 1912. Serial No. 578,674.

To all whom it may concern Be it known that I, GERHABD BROOKE, a citizenof the United States of America, re-

siding at Allegheny, in the county of Alle gheny and State ofPennsylvania, have invented certain new and useful Improvements inValves,of which the following is a specification, reference being hadtherein to the accompanying drawing.

This invention is an improvement upon my Patent No. 916,262, grantedMarch 23, 1909.

The present invention has for its object to provide an equally balancedtwo-way or three-way hydraulic valve that can be used for variouspurposes, the valve being positive in its action, free from injury byordinary use and efficient for the purposes for which it is intended.

I attain the above object by a mechanical construction. consisting ofcomparatively few parts easily and quickly assembled and maintained inan operatable condition, the value being particularly designed forexceedingly high pressures and the parts thereof arranged whereby thepressure within the valve cannot displace any of the valve parts.

The invention will be hereinafter specifically described and thenclaimed, and ref erence will now be had to the drawings, wherein Figure1 is a side elevation of the valve,

Fig. 2 is a plan of the same, Fig. 3 is a vertical sectional view of thevalve showing the same in an exhaust position, .Fig. 4 is a horizontalsectional view of the valve in an exhaust position, Fig. 5 is a verticalsectional view of the valve in a charging posit-ion, and Fig. 6' is ahorizontal sectional view of the same.

In the accompanying drawings 1 denotes a cylindrical "alve body havingthe lower end thereof reduced, as at 2. The valve body 1 is providedwith a vertical stepped bore, said bore being gradually stepped from theupper end of the body. to the lower end thereof to provide a cap socket3, an equalizing chamber 4, an annular gasket seat 5, an annular plugseat 6 and a plug socket 7 The walls of the plug socket 7 are providedwith an annular groove 8 and communicating with said groove through themedium of an angularly disposed port 9 is a nipple 10 formed integralwith the reduced end 3 of the valve body 1. In the nipple 10 is mounteda gasket 11 and an outlet pipe 12, said pipe being retained therein by agland 13 screwed in the nipple and engaging a peripheral flange 14,carried by the inner end of the pipe 12.

Communicating with the equalizing chamber 4 through the medium of a port15 is a nipple 16 formed integral with the valve body 1, and mounted insaid nipple is a gasket 17 and the end of an inlet pipe 18, said pipebeing retained therein by a gland 19 screwed in the nipple to engage aperipheral flange 20, carried by the inner end of the inlet pipe 18.

Mounted in the socket 7 at the lower end of the bore is a plug 21 havingthe upper end thereof provided with a collar 22 resting upon the seat 6and the lower end there- I of reduced and threaded, as at 23 to receivea nut 24 employed for retaining the plug 21 in the valve body 1. Theplug 21 is provided with a vertical exhaust port 25 and with twodiametrically opposed angular ports 26, said ports establishingcommunication between the annular groove 8 and the top of said plug.

Rotatably mounted in the upper part of the valve body 1 is a sectionalvalve stem, comprising a stem 27, a coupling piece 28 and a shiftablemember 29. The shiftable-member rests upon the upper end of the plug 21and extends into the equalizing chamber 4. This member has the 'upperend thereof reduced and provided with a socket 30 to receive'the lowerreduced end 31 of the coupling piece 28, this reduced end being shapedwhereby the shiftable member 29 can shift upon the lower end of thecoupling piece and find its own level or seat upon the top of the plugThe bottom of the member 29 is provided with a central cavity 32 andcommunicating with said cavity are two diametrically opposed grooves 33adapted'to establish communication between the angular ports 26, thecavity 32 and the exhaust 25. The bottom of the shiftable member is alsoprovided with two angular ports 34, these ports being disposed at rightangles to the groove 33 and are'adapted to establish port communicationbetween the equalizing chamber 4 and the angular ports 26.

The walls of t e cap socket 3 are threaded to receive a cap 35, said caphaving the lower end thereof reduced, as at 36 and.

provided with an annular recess 37 to receive the .upper end of theshiftable morn ber 29, the end of said member loosely fitting in therecess 37. The recess 37 houses the coupling piece 28, and-the upper-endof said coupling piece is provided with an annular flange 38 and with asocket 39 to receive the lower reduced end 40 of the stem 27. Encirclingthe coupling piece 28 within the recess 37 is a coiled compressionspring 41, said spring normally retaining the upper beveled edges 42 ofthe annular flange38 seated against the dome-shaped root. 43 of therecessv37, also normally retaining the shiftable. member 29 inengagement with the top of the plug 21.

Interposed between the cap 35 and the seat 5 -and embedded in a groovein the cap 35 is a gasket 44 adapted to prevent a leakage between .thevalve body 1 and the cap 35 by the pressure forcing the gasket againstthe walls of the groove.

The stem 27 is retained in the cap by a collar 45 engaging the roof 430ithe recess 37, also by the upper rectangular .end 46 of said stem, uponwhich is mounted first, a stop-finger 47 having the finger thereof bentdownwardly, as at 51; second, an operating lever 48 having a suitablehandle 50, and third, a washer 50*. These elements are retained upon theupper end of the stem by a screw 49. By making the stop-finger 47 andthe lever 48 of two separate pieces, the lever can be fitted at an angleto the stop-finger it necessary. The depending end of the stop-finger 47is adapted to impinge adjustable stops 52,carried by lugs 53 formedintegral with the valve body 1 and limit the movement of said operatinglever. When the stop-finger 47 engages one of the adjustable stops, thevalve is in a charging position and when engaging the other stop it isin an exhaust position. With the lever intermediate the stops52 thevalve is in a closed or locked position.

The lower end of the valve body 1 is provided with oppositely disposedapertured lugs 54 whereby the valve can be secured to a suitablesupport.

Operation :When the operating lever 48 is moved, the sectional valvestem is moved to either control the passage of water, steam or air fromthe pipe 18 to the pipe 12 or from the pipe 12 to the exhaust port 25.With the sectional valve stem in the position shown in Fig. 3 of thedrawings, the water-steam or air can pass from the pipe 12, through theport 9, groove 8, angular ports 26, grooves 33, cavity 32 to the exhaustport 25, and when the valve is in the position shown in Fig. 5, thewater, steam or air passes from the pipe 18, through the port 15 intothe equalizing chamber 4, through the angular ports 34 of the shiftablemember 29 into the angular ports 26 5 of as plug 21, into the groove- 8and through the port 9 into the pipe 12. In the first mentionedposition, the cylinder or pipe 12 can exhaust and in either position thecylinder or pipe 12 is charged. It is during the latter position thatthe pressure of water, steam or air equally balances the shiftablemember 29 within the equalizing chamber 4 and assists in perfectlyseating said member upon the upper end of the plug 21. It is also thepressure of water. steam or air that forms a non-leakable connectionbetween the upper end of the coupling piece 28 and the cap 35, thuspreventing any leakage around the stem 27.

I attach considerable importance to the sectional valve stem,particularly the manner in which the sections are connected to gether,which permits of the coupling piece 28 and the shiftable member 29adjusting themselves to perfectly seat upon the upper end of the plug 21and against the roof 43 of the cap 35. Besides the pressure maintainingthese sections properly seated, the

spring 41 assists the pressure in this connection.

It will of course be understood that when the grooves 33 are incommunication with the angular ports 26, that the angular ports 34 ofthe shiftable member 29 are blanked by the top of the plug 21, and thatthe valve in its entirety is made of strong and durable metal capable ofwithstanding the high pressure of water, steam through the same.

What I claim is 1. A valve of the type described, comprising a body,said body having an equalizing chamber formed therein, said body havingan inlet port in communication with said chamber, a plug mounted in thelower end of said body, said plug having an exhaust port formed therein,said plug having oppositely disposed angular ports formed therein, saidbody having an outlet port formed therein in communication with theangular ports of said plug, a cap mounted in the upper end of said body,a shiftable member mounted upon the top of said plug, said member havinggrooves formed therein adapted to establish communication between theports and the exhaust port of said plug, said shiftable member havingangular ports formed therein and adapted to establish communicationbetween said chamber and the angular ports of said plug, a couplingpiece loosely connected to the top of said shiftable member, a stemrotatably mounted in said cap and loosely connected to the upper end ofsaid coupling piece, and means interposed between the upper end of saidcoupling piece and the upper end of said shift-able member for normallyretaining said member seated upon the upper end of said plug, and theupper end of said coupling piece seated against said cap.

or air which passes 2. A valve of the type described, comprising a body,said body having an equalizing chamber formed therein, said body havingan inlet port in communication with said chamber, a plug mounted in thelower end of said body, said plug having an exhaust port formed therein,said plug having oppositely disposed angular ports formed therein, saidbody having an outlet port in communication with the angular ports ofsaid plug, a cap mounted in'the upper end of said body, a shiftablemember mounted upon the top of said plug, said member havmg groovesformed therein adapted to establish communication between the ports andthe exhaust port of said plug, said shiftable member having angularports formed therein adapted to establish communication between saidchamber and the angular ports of said plug, a coupling piece looselyconnected tothe top of said shiftable member, a stem rotatably mountedin said cap and loosely connected to the upper end of said couplingpiece, means interposed between the upper end of said coupling piece andthe upper end of said shiftable member for normally retaining saidmember seated upon the upper end of said plug, and the upper end of,said coupling piece seated against said cap, and means adapted tofacilitate the rotation of said stem.

3. A valve of the type described, comprising a body, said body having anequalizing chamber formed therein, said body having an inlet port incommunication with said chamber, a plug mounted in the lower end. ofsaid body, said plug having an exhaust port formed therein, said plughaving oppositely disposed angular ports formed therein, said bodyhaving an outlet port in communication with the angular ports of saidplug, a cap mounted in the upper end of said body, a shiftable membermounted upon the top of said plug, said member having grooves formedtherein adapted to establish communication between the ports and theexhaust port of said plug, said shiftable member having angular portsformed therein and adapted to establish conununication bet-ween saidchamber and the angular ports of said plug, a coupling piece looselyconnected to the top of said shiftable member, a stem rotatably mountedin said cap and loosely connected to the upper end of said couplingpiece, means interposed between the upper end of said coupling piece andthe upper end of said shiftable member for normally retaining saidmember seated upon the upper end of said plug, and the upper end of saidcoupling piece seated against said cap, means adapted to facilitate therotation of said stem, and

means including adjustable stops for limiting the movement of said stem.

In testimony whereof I affix my signature in the presence of twowitnesses.

Gno. E. WEBB, GEO. A. YOUNG.

